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KIM [24]
3 years ago
10

A snowmobile has an initial velocity of 3.0 m/s

Physics
2 answers:
dexar [7]3 years ago
7 0
My answer to the problem is as follows:
 
<span>1. Use the kinematic formula 

Vf = Vi + a*t 

for a, Vi = 3.0 m/s, a = 0.5 m/s/s, and t = 7.o s. 

for b, Vf = 0, Vi = 3.0 m/s, and a = -0.60 m/s/s. 

I hope my answer has come to your help. God bless and have a nice day ahead!
</span>
bazaltina [42]3 years ago
3 0

Answer:

Part a)

v_f = 6.5 m/s

Part b)

t = 5 seconds

Explanation:

Part a)

As we know that

v_f = v_i + at

here we know that

v_i = 3 m/s

a = 0.5 m/s^2

t = 7.0 s

so we will have

v_f = 3 + (0.5)(7.0)

v_f = 6.5 m/s

Part b)

if finally the snowmobile comes to rest

So here we can say that

v_f = 0

v_i = 3.0 m/s

a = -0.60 m/s^2

so now we have

v_f = v_i + at

0 = 3.0 - (0.60)t

t = 5 s

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The boat traveled from the dock north to the 200-meter marker in the bay in less than 5 minutes, giving the passengers several more hours to fish.

Explanation:

A boat traveling from the dock northward to a 200m mark in the bay in less than 5minutes giving the passengers several more hours to fish is a typical and best example of velocity description.

Velocity is the displacement of a body divided by the time taken.

 Velocity = \frac{displacement}{time}

Displacement is the distance covered in a specific direction. Time is duration of the travel.

Velocity is a vector quantity that has both magnitude and direction. This implies that the value of velocity is recorded with a directional attribute.

We can say velocity is the speed of a body in a given direction

Only the last option gives the displacement of the body and the duration it traveled.

Learn more:

Velocity brainly.com/question/10883914

#learnwithBrainly

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3 years ago
What happens to particles in a surface wave (such as a water wave)?
AlekseyPX

Your question: What happens to particles in a surface wave (such as a water wave)?

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Explanation: This is practically the answer the question below (or above me) tried to explain.

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Read 2 more answers
Two trains move towards each other on a straight track/railroad. The left train has a constant speed of 29ms, the right train ha
laiz [17]

Answer:

The left train travels 2378 m until it reaches the meeting point.

Explanation:

The equation for the position of the trains is the following:

x = x0 + v · t

Where:

x = position at time t

x0 = initial position

v = velocity

t = time

If we place the origin of the frame of reference at the initial position of the left train, the right train will be at an initial position of 4744. 6 m relative to the left train. The velocity of the right train will be negative because it will be heading towards the origin.

At the meeting point, the position of both trains is the same:

x left train = x right train

x0₁ + v₁  ·t = x0₂ + v₂ · t

0m + 29 m/s · t = 4744.6 m - 29 m/s · t

58 m/s · t = 4744.6 m

t = 4744.6 m / 58 /s

t = 82 s

The position of the left train at that time will be:

x = x0 + v · t

x = 0 m + 29 m/s · 82 s

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The left train travels 2378 m until it reaches the meeting point.

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3 years ago
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evablogger [386]

Answer:

375J of wasted energy

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If the machine is 50% efficient then it is also 50% inefficient

50%×750J=375J

5 0
3 years ago
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